CN104124779B - The control method and system of dynamic load switching - Google Patents
The control method and system of dynamic load switching Download PDFInfo
- Publication number
- CN104124779B CN104124779B CN201310157651.7A CN201310157651A CN104124779B CN 104124779 B CN104124779 B CN 104124779B CN 201310157651 A CN201310157651 A CN 201310157651A CN 104124779 B CN104124779 B CN 104124779B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/1566—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with means for compensating against rapid load changes, e.g. with auxiliary current source, with dual mode control or with inductance variation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Inverter Devices (AREA)
- Selective Calling Equipment (AREA)
Abstract
The present invention discloses a kind of control method and system of dynamic load switching, and transmitting terminal controls resonance circuit to work in a manner of Sofe Switch；When receiving terminal will carry out load switching, communication information is sent to transmitting terminal；When transmitting terminal receives the communication information of receiving terminal transmission, transmitting terminal control parameter is adjusted according to the communication information and controls resonance circuit to work in a manner of hard switching within a predetermined period of time；In first predetermined amount of time, corresponding actions switching is completed in receiving terminal load；Wherein, the communication information includes the switching action instruction that load will perform, and the predetermined amount of time refers to transmitting terminal and receives the time that communication information terminates to hard switching control mode.The mode being combined using Sofe Switch and hard switching controls the mode that resonance circuit works, and influence when eliminating receiving terminal load changing to resonator system, in the case where ensureing system high efficiency transmission, improves the stability and security of system.
Description
Technical field
The present invention relates to wireless power transmission field, more particularly to the control method and system of a kind of switching of dynamic load.
Background technology
Radio energy transmission system working frequency has following two control modes：Sofe Switch controls and hard switching control, soft
Switch control refers to the semiconductor element such as high-power silicon controlled rectifier control apparatus using zero voltage switching or zero current switching
Mode works, system operating frequency tracking resonator system working frequency, to reach system high efficiency rate；Hard switching control is finger device
The working method that part switches in the case where voltage is not zero or electric current is not zero, system switching consume is big, to sacrifice
System operating efficiency, improve the stability of a system.
When simply using Sofe Switch control mode resonator system frequency being controlled, in dynamic load switching or
When bearing power is mutated, resonator system can be influenceed by load changing, cause system work off resonance, cause system work unstable
Fixed, serious meeting causes component damage.When simply using hard switching control mode resonator system frequency being controlled,
System effectiveness is relatively low compared to Sofe Switch control, and switching tube loss is big, influences system main components service life.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of control method and system of dynamic load switching, transmitter
When dynamic load switches or loaded own power switching, conversion soft switching working method works for hard switching, is cut in load
Sofe Switch control is reconverted into after changing, to realize steady operation of the Wireless power transmission system when dynamic load switches.
To reach above-mentioned purpose, the present invention is achieved through the following technical solutions：
A kind of control method of dynamic load switching, this method include：
Transmitting terminal controls resonance circuit to work in a manner of Sofe Switch；
When receiving terminal will carry out load switching, communication information is sent to transmitting terminal；
When transmitting terminal receives the communication information of receiving terminal transmission, according to the communication information to transmitting terminal control parameter
It is adjusted and controls resonance circuit to work in a manner of hard switching in the first predetermined amount of time；
In first predetermined amount of time, corresponding actions switching is completed in receiving terminal load；
Wherein, the communication information includes the switching action instruction that receiving terminal load will perform, the described first pre- timing
Between section refer to transmitting terminal and receive the time that communication information terminates to hard switching control mode.
Further, when the transmitting terminal controls resonance circuit work in first predetermined amount of time in a manner of hard switching
At the end of work, transmitting terminal switches to Sofe Switch mode and controls resonance circuit to work.
Further, when receiving terminal will carry out load switching, line delay is entered and the according to the second predetermined amount of time
The switching action instruction that will perform load in three predetermined amount of time is sent to transmitting terminal；When according to second scheduled time
At the end of section delay, the corresponding switching action of load response；
Wherein, second predetermined amount of time refer to receiving terminal receive switching action instruct to load response accordingly switch it is dynamic
The time of work；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruct send
To the time of transmitting terminal；
Second predetermined amount of time is less than first predetermined amount of time, and the 3rd predetermined amount of time is less than described the
Two predetermined amount of time.
Further, the transmitting terminal passes through special communication channel or inductively transmission communication with receiving terminal
Information.
Further, when the transmitting terminal receives the communication information of receiving terminal transmission, according to the communication information pair
Transmitting terminal control parameter is adjusted and controls resonance electric in a manner of hard switching according to corresponding frequencies in the first predetermined amount of time
Road works.
Correspondingly, invention additionally discloses a kind of control system of dynamic load switching, the system includes transmitting terminal and connect
Receiving end, transmitting terminal transmit electric energy by inductively passage to receiving terminal,
Wherein, transmitting terminal controls resonance circuit to work in a manner of Sofe Switch；When receiving terminal will carry out load switching, to
Transmitting terminal sends communication information；When transmitting terminal receives the communication information of receiving terminal transmission, according to the communication information to hair
End control parameter is penetrated to be adjusted and control resonance circuit to work in a manner of hard switching in the first predetermined amount of time；Described
In one predetermined amount of time, corresponding actions switching is completed in receiving terminal load；
Wherein, the communication information includes the switching action instruction that receiving terminal load will perform, the described first pre- timing
Between section refer to transmitting terminal and receive the time that communication information terminates to hard switching control mode.
Further, when the transmitting terminal controls resonance electricity in first predetermined amount of time in a manner of corresponding hard switching
During the end-of-job of road, transmitting terminal switches to Sofe Switch mode and controls resonance circuit to work.
Further, when receiving terminal will carry out load switching, line delay is entered and the according to the second predetermined amount of time
The switching action instruction that the load will perform is sent to transmitting terminal in three predetermined amount of time；When predetermined according to described second
At the end of period is delayed, the corresponding switching action of load response；
Wherein, second predetermined amount of time refer to receiving terminal receive switching action instruct to load response accordingly switch it is dynamic
The time of work；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruct send
To the time of transmitting terminal；
Second predetermined amount of time is less than first predetermined amount of time, and the 3rd predetermined amount of time is less than described the
Two predetermined amount of time.
Further, the transmitting terminal passes through special communication channel or inductively transmission communication with receiving terminal
Information.
Further, when transmitting terminal receives the communication information of receiving terminal transmission, according to the communication information to transmitting
End control parameter is adjusted and is controlled resonance circuit work in a manner of hard switching according to corresponding frequencies in the first predetermined amount of time
Make.
Using technical scheme, in radio energy transmission system receiving terminal load changing, to transmitting terminal parameter
Adjusted in advance, the hard switching working hour of adjusting parameter is added in the Sofe Switch course of work, it is prominent to eliminate receiving terminal load
To the influence of resonator system during change, system job stability and security are improved.
Brief description of the drawings
Fig. 1 is the control method flow chart of load switching at runtime provided in an embodiment of the present invention；
Fig. 2 is the flow chart that transmitting terminal provided in an embodiment of the present invention load switching；
Fig. 3 is the flow chart that receiving terminal provided in an embodiment of the present invention load switching；
Fig. 4 is dynamic load switching time schematic diagram of the present invention；
Fig. 5 is the Control system architecture block diagram of dynamic load provided in an embodiment of the present invention switching.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.Specific embodiment described herein is only used for
Explain the present invention, rather than limitation of the invention.
Fig. 1 is the control method flow chart of load switching at runtime provided in an embodiment of the present invention.This method in the present embodiment
Applied in radio energy transmission system.
Radio energy transmission system includes transmitting terminal and receiving terminal.By inductively establishing between transmitting terminal and receiving terminal
Connection, wireless power transmission is carried out, receiving terminal is load supplying.Need exist for illustrating, in the present embodiment, radio energy passes
The Main functional units that defeated system includes and prior art are same or like.Transmitting terminal includes radiating circuit（Including transmitting
Coil）, resonance circuit and control circuit；Receiving terminal includes receiving circuit（Including receiving coil）.Those of ordinary skill in the art
It is readily apparent that, the implementation that each circuit unit composition may use is different.Such as primary and secondary side resonance circuit can be with
Selection is made up of one group of electric capacity, resistance and inductance component, can also select other alternative schemes.
Idiographic flow is as follows：
Transmitting terminal controls resonance circuit to work in a manner of Sofe Switch, and electric energy is transmitted to receiving terminal；
When receiving terminal will carry out load switching, receiving terminal enters line delay and pre- the 3rd according to the second predetermined amount of time
In section of fixing time communication information is sent to transmitting terminal；
Transmitting terminal receives the communication information of receiving terminal transmission, and the control that resonance circuit is adjusted according to the communication information is joined
Number, switches to hard switching mode to control resonance circuit to work Sofe Switch mode in the first predetermined amount of time, is passed to receiving terminal
Transmission of electricity energy；
In first predetermined amount of time, receiving terminal completes corresponding switching action；
Wherein, the communication information includes the switching action instruction that receiving terminal load will perform.Described first pre- timing
Between section refer to transmitting terminal and receive the time that communication information terminates to hard switching control mode.
Second predetermined amount of time, which refers to receiving terminal and receives switching action, to be instructed to the corresponding switching action of load response
Time；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruction be sent to
Penetrate the time at end；
Second predetermined amount of time is less than first predetermined amount of time, and the 3rd predetermined amount of time is less than described the
Two predetermined amount of time.
In addition, also include on the basis of the above-described procedure, when the transmitting terminal in first predetermined amount of time to open firmly
When pass mode controls resonance circuit end-of-job, transmitting terminal switches to Sofe Switch mode and controls resonance circuit to work.
Method described in the present embodiment, the mode being combined using Sofe Switch control and hard switching control, ensures loading
Switching at runtime when, the stability of a system is high, and ensures higher efficiency of transmission to greatest extent.
Fig. 2 is the flow chart that transmitting terminal provided in an embodiment of the present invention load switching.As shown in Fig. 2 idiographic flow
Including：
Step 201：Radio energy transmitting terminal controls resonance circuit to work in a manner of Sofe Switch.
Radio energy transmitting terminal controls resonance circuit to work in a manner of Sofe Switch, so that load end frequency meets system resonance
Frequency, high efficiency of transmission can be ensured.
Step 202：Whether detection transmitting terminal receives the communication information of receiving terminal transmission, in this way, performs step 203；It is no
Then, step 201 is performed.
Existing wireless power transmission is usually one-way transmission mode, and receiving terminal obtains transmitting by way of inductively
The signal sent is held, power supply is provided for load.In the present embodiment, because the information being related between transmitting terminal and receiving terminal is handed over
Mutually, therefore, it is necessary to the communication between transmitting terminal and receiving terminal is configured.For the side communicated between transmitting terminal and receiving terminal
Formula can be selected according to being actually needed.For example, both sides' number can be completed by way of sharing inductively transmission channel
According to interaction.Certainly, in order to realize transmitting terminal and receiving terminal data interaction, it is necessary to transmission signal on wireless power transmission passage
Type and time are controlled.In addition, in order to avoid producing signal interference on one-way wireless transmission channel, transmitting can also be used
End passes through special communication transmission communication information, the special communication channel and the inductively transmission channel with receiving terminal
It is different.Transmitting terminal wirelessly carries out information transfer with receiving terminal by special communication channel.
The communication information refers to switching action instruction that receiving terminal load will perform etc..For example, load will be by treating
Machine state is switched to working condition, either by working condition be switched to holding state or, load end power need be adjusted
Deng.
When receiving terminal load-receipt instructs to the switching action that will be performed, the switching that the load will perform is moved
Transmitting terminal is sent to as instruction.
Step 203：Transmitting terminal control parameter is adjusted according to the communication information and in the first predetermined amount of time
Resonance circuit is controlled to work in a manner of hard switching.
Because resonance circuit can be influenceed by load changing, therefore transmitting terminal receives the communication information of receiving terminal transmission
Afterwards, system resonance parameter is adjusted according to communication information, to adapt to the power requirement of load end.During load switching, for
Resonant circuit parameters have a great influence, if continuing to control resonance circuit to work in a manner of Sofe Switch, easily cause resonance circuit work
Make off resonance.Therefore, after communication information is received, meeting is controlled humorous transmitting terminal in the first predetermined amount of time by hard switching mode
When the circuit that shakes work is to adapt to load switching, on influence caused by resonance circuit.
Explanation is needed exist for, first predetermined amount of time can be provided with by transmitting side controller, can also be by
Operator is by setting button to complete to set.It can be configured as needed for the first predetermined amount of time parameter setting.
Step 204：System is worked in a manner of hard switching.
Transmitting terminal is switched to hard switching mode and controls resonance circuit to work.Wherein, the hard switching mode is according to communication
Information selection respective tones modulus control resonance circuit work.The frequency values are preset according in the case of load different capacity
's.Hard switching mode enables to complete parameter adjustment in the resonance circuit short time, improves the stability of resonance circuit.
Step 205：Detection emitter controls resonance system in first predetermined amount of time in a manner of corresponding hard switching
Whether system work terminates, and in this way, performs step 201；Otherwise, step 204 is performed.
In first predetermined amount of time, transmitting terminal controls resonator system to work in a manner of corresponding hard switching.Described
In first predetermined amount of time, corresponding actions switching is completed in load, and when the transmitting terminal is in first predetermined amount of time
When resonance circuit end-of-job is controlled in a manner of corresponding hard switching, transmitting terminal switches to Sofe Switch mode and controls resonance circuit work
Make.
Fig. 2 is for loading the description of switching at runtime flow from the angle of transmitting terminal.Fig. 3 is provided in an embodiment of the present invention negative
It is loaded into the flow chart of Mobile state switching.As shown in figure 3, idiographic flow includes：
Step 301：Receiving terminal load is in standby or working condition.
Step 302：Whether detection load will perform switching action instruction.
Explanation is needed exist for, it is the execution by being set in load main control chip that whether load, which performs switching action instruction,
What flow determined.Certainly, which loaded work piece of final choice is set by operator.The switching that the load will perform is moved
Making instruction includes being switched to working condition by holding state, is either switched to holding state by working condition or completes itself
Switching of power etc..
Step 303：Line delay is entered and in the 3rd predetermined amount of time by the switching action according to the second predetermined amount of time
Instruction is sent to radio energy transmitting terminal.
The switching action instruction that load main control chip will perform load is sent to receiving terminal, when receiving terminal load-receipt
It is simultaneously pre- the 3rd to enter line delay to the second predetermined amount of time during switching action instruction that will be performed, set according to operator
The switching action instruction that the load will perform is sent to transmitting terminal in section of fixing time.
Wherein, second predetermined amount of time refer to receiving terminal receive switching action instruct to load response accordingly switch it is dynamic
The time of work；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruct send
To the time of transmitting terminal；
Second predetermined amount of time is less than first predetermined amount of time, and the 3rd predetermined amount of time is less than described the
Two predetermined amount of time.
Second predetermined amount of time ensures before load response switching action more than the 3rd predetermined amount of time, will by load
The switching action instruction of execution is sent to transmitting terminal, ensures that transmitting terminal fulfils control parameter regulation ahead of schedule.
Step 304：Continue to be delayed according to the second predetermined amount of time.
Step 305：The delay of second predetermined amount of time terminates, and responds operational order.
At the end of second predetermined amount of time, resonant circuit frequency has been adjusted to load switching action needs by transmitting terminal
Frequency, now load complete corresponding actions switching.Second predetermined amount of time is less than first predetermined amount of time, that is, sends out
End is penetrated when controlling resonance circuit end-of-job in a manner of hard switching according to response frequency in first predetermined amount of time,
Complete load action switching.In order to take into account the requirement of system high efficiency transmission, hard switching mode is switched to Sofe Switch by transmitting terminal again
Mode controls resonance circuit to work, and when whole handoff procedure proof load action switches, transmitting terminal is controlled in a manner of hard switching
Resonance circuit work, improve the stability of system.
Fig. 4 is the time diagram of dynamic load of the present invention switching.Refer to as shown in figure 4, receiving terminal receives switching action
When making, line delay is entered according to the second predetermined amount of time T2, switching action is performed again after the T2 periods terminate.Receive and cut simultaneously
, it is necessary to which the switching action instruction that the load will perform is sent into transmitting terminal when changing action command.Described 3rd pre- timing
Between section T3 refer to since receiving terminal receive switching action instruction send relevant information, to transmitting terminal receive the information when
Between section, be to prevent communication information transmission delay long, cause communication information not to be transferred to transmitting terminal in time, can not shift to an earlier date
Complete the regulation of transmitting terminal control parameter.Transmitting terminal controls resonance circuit to work in a manner of Sofe Switch, when transmitting terminal receives reception
When holding the communication information sent, transmitting terminal control parameter is adjusted according to the communication information, and in first scheduled time
Continue to control resonance circuit to work in a manner of hard switching in section T1, the first predetermined amount of time T1 refers to transmitting terminal and receives communication information
The time terminated to hard switching control mode；In the first predetermined amount of time T1, corresponding actions switching is completed in load；
Wherein, the first predetermined amount of time T1 is more than the second predetermined amount of time T2, can proof load carrying out action switching
After the completion of, transmitting terminal still controls resonance circuit to work in a manner of hard switching, can ensure the stability of system.When the transmitting
When end controls resonance circuit end-of-job in first predetermined amount of time in a manner of corresponding hard switching, Sofe Switch side is switched to
Formula control resonance circuit work.
Fig. 5 is the Control system architecture block diagram of dynamic load provided in an embodiment of the present invention switching.It is as shown in figure 5, described
System includes transmitting terminal 501 and receiving terminal 502, and transmitting terminal 501 transmits electric energy to receiving terminal 502 by inductively channel, connect
Receiving end 502 is the power supply of load 503,
Wherein, the transmitting terminal 501 is connected with receiving terminal 502 by inductively establishing, and carries out wireless power transmission；Hair
Penetrate end 501 controls resonance circuit to work in a manner of Sofe Switch；When receiving terminal 502 will carry out load switching, to transmitting terminal 501
Send communication information；When transmitting terminal 501 receives the communication information of the transmission of receiving terminal 502, according to the communication information to hair
501 control parameters of end are penetrated to be adjusted and control resonance circuit to work in a manner of hard switching in the first predetermined amount of time；Institute
State in the first predetermined amount of time, corresponding actions switching is completed in receiving terminal load；
Wherein, the communication information includes the switching action instruction that load will perform, and first predetermined amount of time refers to
Transmitting terminal receives the time that communication information terminates to hard switching control mode.
Need exist for explanation, in the present embodiment, Main functional units that radio energy transmission system includes with it is existing
Technology is identical.Transmitting terminal includes radiating circuit（Including transmitting coil）, resonance circuit and control circuit；Receiving terminal includes connecing
Receive circuit（Including receiving coil）.It will be readily appreciated by those skilled in the art that the realization that each circuit unit composition uses
Mode is different.Such as primary and secondary side resonance circuit can select to be made up of one group of electric capacity, resistance and inductance component, can also select
Select other alternative schemes.
When the transmitting terminal 501 controls resonance circuit end-of-job in first predetermined amount of time in a manner of hard switching
When, transmitting terminal switches to Sofe Switch mode and controls resonance circuit to work.
When receiving terminal 502 will carry out load switching when, according to the second predetermined amount of time enter line delay and and it is pre- the 3rd
The switching action instruction that the load will perform is sent to transmitting terminal in section of fixing time；When receiving terminal is according to the second pre- timing
Between section delay at the end of, the corresponding switching action of load response；
Wherein, second predetermined amount of time refer to receiving terminal receive switching action instruct to load response accordingly switch it is dynamic
The time of work；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruct send
To the time of transmitting terminal；Second predetermined amount of time is less than first predetermined amount of time.
System described in the present embodiment due to the information exchange being related between transmitting terminal and receiving terminal, therefore, it is necessary to hair
The communication penetrated between end and receiving terminal is configured.Can be according to actual need for the mode communicated between transmitting terminal and receiving terminal
Selected.Interacted for example, both data can be completed by way of sharing the wireless power transmission passage.Certainly,
In order to realize transmitting terminal and receiving terminal data interaction, it is necessary to enter to the type and time of transmission signal on wireless power transmission passage
Row control.In addition, in order to avoid producing signal interference on one-way wireless transmission channel, can also be led to using transmitting terminal with receiving terminal
Special communication transmission communication information is crossed, the special communication channel is different from the wireless power transmission channel.Transmitting terminal
Information transfer is carried out with wired or wireless mode by special communication channel with receiving terminal.
When transmitting terminal 501 receives the communication information of the transmission of receiving terminal 502, according to the communication information to transmitting terminal control
Parameter processed is adjusted and controls resonance circuit to work in a manner of hard switching according to corresponding frequencies in the first predetermined amount of time.
In system described in the present embodiment, transmitting terminal is controlled humorous using Sofe Switch control and the mode that is combined of hard switching control
The circuit that shakes works, and ensures that under Sofe Switch state, transmitting is controlled when dynamic load switches for transmitting terminal overwhelming majority time service
End is operated in hard switching state, in the case where ensureing system high efficiency transmission, improves system run all right, eliminates because of dynamic
System off resonance caused by load switching.
It above are only presently preferred embodiments of the present invention and institute's application technology principle, any technology people for being familiar with the art
Member the invention discloses technical scope in, the change or replacement that can readily occur in should all be covered in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of control method of dynamic load switching, it is characterised in that this method includes：
Transmitting terminal controls resonance circuit to work in a manner of Sofe Switch；
When receiving terminal will carry out load switching, communication information is sent to transmitting terminal；
When transmitting terminal receives the communication information of receiving terminal transmission, transmitting terminal control parameter is carried out according to the communication information
Adjust and control resonance circuit to work in a manner of hard switching in the first predetermined amount of time；
In first predetermined amount of time, corresponding actions switching is completed in receiving terminal load；
Wherein, the communication information includes the switching action instruction that receiving terminal load will perform, first predetermined amount of time
Refer to transmitting terminal and receive the time that communication information terminates to hard switching control mode.
2. the control method of dynamic load switching according to claim 1, it is characterised in that when the transmitting terminal is described
When resonance circuit end-of-job is controlled in a manner of hard switching in the first predetermined amount of time, transmitting terminal switches to Sofe Switch mode and controlled
Resonance circuit works.
3. the control method of dynamic load switching according to claim 1, it is characterised in that when receiving terminal will be born
When carrying switching, line delay is entered according to the second predetermined amount of time and moved the switching that load will perform in the 3rd predetermined amount of time
Transmitting terminal is sent to as instruction；At the end of being delayed according to second predetermined amount of time, the corresponding switching action of load response；
Wherein, second predetermined amount of time, which refers to receiving terminal and receives switching action, instructs to the corresponding switching action of load response
Time；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruction be sent to
Penetrate the time at end；
Second predetermined amount of time is less than first predetermined amount of time, and it is pre- that the 3rd predetermined amount of time is less than described second
Fix time section.
4. the control method of dynamic load switching according to claim 1, it is characterised in that the transmitting terminal and receiving terminal
Pass through special communication channel or inductively transmission communication information.
5. the control method of dynamic load switching according to claim 1, it is characterised in that when the transmitting terminal receives
During the communication information that receiving terminal is sent, transmitting terminal control parameter is adjusted according to the communication information and in the first pre- timing
Between control resonance circuit to work in a manner of hard switching according to corresponding frequencies in section.
6. a kind of control system of dynamic load switching, it is characterised in that the system includes transmitting terminal and receiving terminal, transmitting terminal
Electric energy is transmitted to receiving terminal by inductively channel,
Wherein, transmitting terminal controls resonance circuit to work in a manner of Sofe Switch；When receiving terminal will carry out load switching, to transmitting
End sends communication information；When transmitting terminal receives the communication information of receiving terminal transmission, according to the communication information to transmitting terminal
Control parameter is adjusted and controls resonance circuit to work in a manner of hard switching in the first predetermined amount of time；It is pre- described first
Fix time in section, corresponding actions switching is completed in receiving terminal load；
Wherein, the communication information includes the switching action instruction that receiving terminal load will perform, first predetermined amount of time
Refer to transmitting terminal and receive the time that communication information terminates to hard switching control mode.
7. the control system of dynamic load switching according to claim 6, it is characterised in that when the transmitting terminal is described
When resonance circuit end-of-job is controlled in a manner of corresponding hard switching in the first predetermined amount of time, transmitting terminal switches to Sofe Switch mode
Control resonance circuit work.
8. the control system of dynamic load switching according to claim 6, it is characterised in that when receiving terminal will be born
When carrying switching, line delay is entered according to the second predetermined amount of time and cut in the 3rd predetermined amount of time by what the load will perform
Change action command and be sent to transmitting terminal；At the end of being delayed according to second predetermined amount of time, accordingly switching is dynamic for load response
Make；
Wherein, second predetermined amount of time, which refers to receiving terminal and receives switching action, instructs to the corresponding switching action of load response
Time；3rd predetermined amount of time refer to receiving terminal receive switching action instruct to by the switching action instruction be sent to
Penetrate the time at end；
Second predetermined amount of time is less than first predetermined amount of time, and it is pre- that the 3rd predetermined amount of time is less than described second
Fix time section.
9. the control system of dynamic load switching according to claim 6, it is characterised in that the transmitting terminal and receiving terminal
Pass through special communication channel or the inductively transmission communication information.
10. the control system of dynamic load switching according to claim 6, it is characterised in that when transmitting terminal receives
During the communication information that receiving end is sent, transmitting terminal control parameter is adjusted according to the communication information and in first scheduled time
Resonance circuit is controlled to work in a manner of hard switching according to corresponding frequencies in section.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157651.7A CN104124779B (en) | 2013-04-28 | 2013-04-28 | The control method and system of dynamic load switching |
| PCT/CN2013/080792 WO2014176840A1 (en) | 2013-04-28 | 2013-08-05 | Control method and system for dynamic load switching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157651.7A CN104124779B (en) | 2013-04-28 | 2013-04-28 | The control method and system of dynamic load switching |
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| CN104124779A CN104124779A (en) | 2014-10-29 |
| CN104124779B true CN104124779B (en) | 2018-02-16 |
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| CN201310157651.7A Active CN104124779B (en) | 2013-04-28 | 2013-04-28 | The control method and system of dynamic load switching |
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| WO (1) | WO2014176840A1 (en) |
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| KR101846954B1 (en) * | 2016-06-13 | 2018-04-10 | 주식회사 맵스 | Wireless power transmitting unit capable auto-tunning in response to impedance variance of load |
| CN110887670B (en) * | 2019-11-25 | 2022-02-22 | 中国航天空气动力技术研究院 | Aircraft engine propeller test system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252293A (en) * | 2007-02-20 | 2008-08-27 | 精工爱普生株式会社 | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
| CN102195366A (en) * | 2010-03-19 | 2011-09-21 | Tdk株式会社 | Wireless power feeder, wireless power receiver, and wireless power transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713659Y (en) * | 2004-07-21 | 2005-07-27 | 昆盈企业股份有限公司 | Frequency changing type induction charging equipment |
| CN103460615B (en) * | 2011-02-07 | 2016-04-27 | 捷通国际有限公司 | The system and method for the communication in Wireless power transmission system is provided |
-
2013
- 2013-04-28 CN CN201310157651.7A patent/CN104124779B/en active Active
- 2013-08-05 WO PCT/CN2013/080792 patent/WO2014176840A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252293A (en) * | 2007-02-20 | 2008-08-27 | 精工爱普生株式会社 | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
| CN102195366A (en) * | 2010-03-19 | 2011-09-21 | Tdk株式会社 | Wireless power feeder, wireless power receiver, and wireless power transmission system |
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| WO2014176840A1 (en) | 2014-11-06 |
| CN104124779A (en) | 2014-10-29 |
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